Michael Polanyi

"I shall suggest, on the contrary, that all communication relies, to a noticeable extent on evoking knowledge that we cannot tell, and that all our knowledge of mental processes, like feelings or conscious intellectual activities, is based on a knowledge which we cannot tell."

"The process of philosophic and scientific enlightenment has shaken the stability of beliefs held explicitly as articles of faith."

"Human beings exercise responsibilities within a social setting and a framework of obligations which transcend the principle of intelligence."

"I shall suggest, on the contrary, that all communication relies, to a noticeable extent on evoking knowledge that we cannot tell, and that all our knowledge of mental processes, like feelings or conscious intellectual activities, is based on a knowledge which we cannot tell."